Midsummer is important to Swedish people, of all ages. There are lots of links to articles and YouTube clips on social media explaining the tradition. The other day I asked a group of people what is important to them on Midsummer. The group consisted of expats in Sweden (having been here for a long time), Swedes that have been living abroad and … just Swedes. There was no difference between the answers of the Swedes and the expats, but as expected the now repatriated Swedes seemed to have celebrated more when abroad, and especially if they had children at the time.
Flower wreaths (for hair), may pole, dancing, sunny weather, picking flowers for decoration, food
White dresses, floral prints dresses, rain gear
Spending time with friends, going to a traditional may pole celebration, lottery, outdoor games (i.e. spoonrace with egg or potatoes)
Strawberries, egg, herring, barbecue, new potatoes, gräddfil (sourcream), fika
These things were also important when living outside Sweden: brännvinsost (type of cheese), prinskorv (small sausages), dillchips, estrella dip sauces, meatballs, arranging a bigger get together with other Swedish people.
No one mentioned schnapps or beer, or singing at the table, but this of course, is part of it too! As is setting the table up outside, having to carry it inside when the rain showers appear, and then outside again …
What else is important?
I shall ask @Sweden for help with input.